Optical fiber sensing and communication systems using fiber and microchip laser sources

Junewen Chen; Pie-Yau Chien; Jun-Ting Lin

doi:10.1117/12.520306

12 May 2004 Optical fiber sensing and communication systems using fiber and microchip laser sources

Junewen Chen, Pie-Yau Chien, Jun-Ting Lin

Proceedings Volume 5280, Materials, Active Devices, and Optical Amplifiers; (2004) https://doi.org/10.1117/12.520306
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

Abstract

Fiber optic strain sensor systems using fiber Bragg grating have been developed in our Section with time demultiplexing phase stabilized feed back Fabry-Perot tunable filter and signal processing technologies. The system can resolve < 1 μ strain, with measuring range of 4000 μ strain; and can monitor 20 points simultaneously. It has been used in real time long term hazard investigation and warning system on the bridges and traffic high-pass ways. The data from these smart fiber optic distributed stress and strain sensing systems had constantly been observed with satisfactory results. Our fiber optic communication system is a bi-directional audio-video and data signal transmission system. The source laser diodes are TE cooled with temperature control circuits. The system is dual audio bi-directional transmission and receiving channel with bandwidth 4.8 KHz. Video one direction transmission and receiving, meets NTSC specification with bandwidth 6 MHz. Dual data signals bi-directional transmission adn receiving channel, meets RS-232C specification and the Buad rate are 9.6 Kbps. The sstems are carefully designed and fabricated to meet the environmental wide temperature range conditions as well as high vibration and shock mobile transportation.

Citation Download Citation

Junewen Chen, Pie-Yau Chien, and Jun-Ting Lin "Optical fiber sensing and communication systems using fiber and microchip laser sources", Proc. SPIE 5280, Materials, Active Devices, and Optical Amplifiers, (12 May 2004); https://doi.org/10.1117/12.520306

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KEYWORDS

Optical fibers

Sensing systems

Fiber optics sensors

Fiber Bragg gratings

Sensors

Fiber optics

Telecommunications

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